BRITISH STANDARD
Tyres and wheels —
Part 1: Tyres —
Section 5: Industrial vehicle tyres —
Subsection 5.4a Specification for solid
tyres (metric series) for pneumatic tyre
rims: Designation, dimensions and
marking
ICS 53. 060; 83. 1 60. 99
BS AU
50-1-5.4a:1994
ISO 10499-1:
1991
Incorporating
Amendment No. 1 to
BS AU 50-5. 4:1994
(Renumbers the BS as
BS AU 50-5. 4a:1994)
not published
separately
BS AU 50-1-5.4a:1994
Committees responsible for this
British Standard
The preparation of this British Standard was entrusted by the Automobile
Standards Policy Committee (AUE/-) to Technical Committee AUE/4, upon
which the following bodies were represented:
Agricultural Engineers’ Association
Automobile Association
British Industrial Truck Association
British Pressure Gauge Manufacturers’ Association
British Rubber Manufacturers’ Association
Bus and Coach Council
Department of Transport
Freight Transport Association
Institute of Road Transport Engineers (Inc)
Motor Cycle Industry’s Association of Great Britain Ltd.
Motor Industry Research Association
National Tyre Distributors’ Association
Retread Manufacturers’ Association
Road Haulage Association Ltd.
Society of Motor Manufacturers and Traders Ltd.
This British Standard, having
been prepared under the
direction of the Automobile
Standards Policy Committee,
was published under the
authority of the Standards
Board and comes
into effect on
1 5 February 1 994
© BSI 04-1 999
The following BSI references
relate to the work on this
standard:
Committee reference AUE/4
Draft for comment 90/76568 DC
ISBN 0 580 22806 1
Amendments issued since publication
Amd. No.
Date
Comments
1 0001
May 1 998
Indicated by a sideline in the margin
BS AU 50-1-5.4a:1994
Contents
Page
Committees responsible
Inside front cover
National foreword
ii
1
Scope
1
2
Normative references
1
3
Definitions
1
4
Tyre designations
1
5
Marking
1
6
Tyre dimensions
2
7
Tyre size range
2
Table 1 — Nominal rim diameter code
1
Table 2 — Nominal rim width code
1
Table 3 — Recommended size range and dimensions for solid tyres
for pneumatic tyre rims
List of references
© BSI 04-1 999
3
Inside back cover
i
BS AU 50-1-5.4a:1994
National foreword
This Subsection of this Part of BS AU 50 has been prepared under the direction
of the Automobile Standards Policy Committee and is identical with
Industrial tyres and rims — Rubber solid tyres (metric series)
for pneumatic tyre rims — Part 1: Designation, dimensions and marking,
ISO 1 0499-1 : 1 991
including Amendment 1 , published by the International Organization for
Standardization (ISO). Other Parts of this standard are as follows:
Part 2: Wheels and rims ;
Part 3: Valves;
— Part 4: Rim profiles and dimensions .
—
—
Cross-references
International standard
Corresponding British Standard
ISO 3739-1 : 1 992
Tyres and wheels
Tyres
Section 5: Industrial vehicle tyres
Subsection 5. 2: 1 994 Specification for pneumatic tyres
(metric series) on 5° tapered or flat base rims
(designation, dimensions and marking)
BS AU 50
Part 1
The Technical Committee has reviewed the provisions of ISO 3877-4 and
ISO 4223-2 to which normative reference is made in the text and has decided that
they are acceptable for use in conj unction with this standard.
A British Standard does not purport to include all the necessary provisions of a
contract. Users of British Standards are responsible for their correct application.
Compliance with a British Standard does not of itself confer immunity
from legal obligations.
Summary of pages
This document comprises a front cover, an inside front cover, pages i and ii,
pages 1 to 4, an inside back cover and a back cover.
This standard has been updated (see copyright date) and may have had
amendments incorporated. This will be indicated in the amendment table on
the inside front cover.
ii
© BSI 04- 1 999
ISO 10499-1:1991
1 Scope
4.3 Nominal rim diameter code
This International Standard specifies the main
requirements, including designations, dimensions
For tyres mounted on existing rims, the code shall
be as given in Table 1 .
Table 1 — Nominal rim diameter code
and markings, of the metric series of rubber solid
tyres for pneumatic tyre rims primarily intended for
industrial machines for use on prepared surfaces.
Rim contours fitting these tyres will be specified in
Nominal rim diameter code
Nominal rim diameter,
mm
4
1 02
6
1 52
2 Normative references
8
203
The following standards contain provisions which,
9
229
10
254
12
305
15
381
a future part of ISO 3739.
through reference in this text, constitute provisions
of this International Standard. At the time of
publication, the editions indicated were valid. All
standards are subj ect to revision, and parties to
agreements based on this International Standard
are encouraged to investigate the possibility of
applying the most recent editions of the standards
indicated below. Members of IEC and ISO maintain
registers of currently valid International Standards.
1)
Industrial tyres and rims —
Part 1: Pneumatic tyres (metric series) on 5 degrees
tapered or flat base rims — Designation, dimensions
and marking.
ISO 3877-4: 1 984, Tyres, valves and tubes — List of
equivalent terms — Part 4: Solid tyres.
ISO 4223-2: 1 991 , Definitions of some terms used in
the tyre industry — Part 2: Solid tyres.
ISO 1 0499-2: —, Industrial tyres and rims — Rubber
solid tyres (metric series) for pneumatic tyre rims —
Part 2: Load ratings (To be published).
ISO 3739: — ,
3 Definitions
For definitions of terms relating to solid tyres,
see ISO 4223-2; equivalent terms are given in
ISO 3877-4.
D
r
4.4 Nominal rim width code
For tyres mounted on existing rims, the code shall
be as given in Table 2.
Table 2 — Nominal rim
width code
Nominal rim width code
2. 5
3. 25
4. 0
5. 0
6. 5
8. 0
1 0. 0
5 Marking
The marking concerning the dimensional and
constructional characteristics shall consist of the
four- part designation specified in clause 4 .
The location of the marking of the rim width code
4 Tyre designations
The dimensional and constructional characteristics
shall be indicated as follows:
may be distinct but shall be in close proximity to the
marking of the other dimensional characteristics.
The marking concerning the designation of the
service description is specified in ISO 1 0499-2: —.
EXAMPLE
225/75 – 15/6.5
4.1 Nominal section width
The characteristics of a tyre with the
The nominal section width of the tyre shall be
above markings would be as follows:
indicated in millimetres, ending either in 0 or 5.
4.2 Nominal aspect ratio
The nominal aspect ratio shall be expressed as a
percentage and shall be a multiple of 5 .
225:
nominal section width equal to 225 mm;
75:
nominal aspect ratio equal to 75;
1 5:
nominal rim diameter code, corresponding
to 381 mm;
6. 5:
1)
nominal rim width code.
To be published.
© BSI 04-1 999
1
ISO 10499-1:1991
6 Tyre dimensions
The specified dimensional data for solid tyres for
pneumatic tyre rims are maximum dimensions and
shall satisfy the requirements in 6.1 and 6.2 .
6.1 The tyre section width shall not exceed the
values of design section width for pneumatic tyres of
the same size designation as specified in
ISO 3739- 1 .
The effective tyre section width of the solid tyres
may be substantially less than the specified design
section width.
2
6.2 The tyre section height shall not exceed the
values of design section height for pneumatic tyres
of the same size designation as specified in
ISO 3739-1 .
The tyre overall diameter is the sum of the nominal
rim diameter,
D
r
plus twice the tyre section height.
7 Tyre size range
The relevant size range for the recommended metric
series of solid tyres for pneumatic tyre rims and
their specified maximum dimensions are shown in
Table 3.
© BSI 04- 1 999
ISO 10499-1:1991
Table 3 — Recommended size range and dimensions for solid tyres for pneumatic tyre rims
Nominal tyre Nominal rim Rim width
section width diameter code
code
Maximum tyre
section width
mm
mm
Maximum overall diameter
mm
Nominal aspect ratio
85 %
80 %
75 %
70 %
65 %
1 00
4
2. 5
98
272
262
252
242
232
110
4
3. 25
112
290
278
268
256
246
1 25
4
3. 25
1 23
31 4
302
290
278
264
1 40
4
4. 0
1 41
340
326
31 2
298
284
1 60
4
4. 0
1 56
374
358
342
326
31 0
1 80
4
5. 0
1 80
408
390
372
354
336
200
4
5. 0
1 95
442
422
402
382
362
1 00
6
2. 5
98
322
31 2
302
292
282
110
6
3. 25
112
340
328
31 8
306
296
1 25
6
3. 25
1 23
364
352
340
328
31 4
1 40
6
4. 0
1 41
390
376
362
348
334
1 60
6
4. 0
1 56
424
408
392
376
360
1 80
6
5. 0
1 80
458
440
422
404
386
200
6
5. 0
1 95
492
472
452
432
41 2
1 00
8
2. 5
98
373
363
353
343
333
110
8
3. 25
112
391
379
369
357
347
1 25
8
3. 25
1 23
41 5
403
391
379
365
1 40
8
4. 0
1 41
441
427
41 3
399
385
1 60
8
4. 0
1 56
475
459
443
427
41 1
1 80
8
5. 0
1 80
509
491
473
455
437
200
8
5. 0
1 95
543
523
503
483
463
225
8
6. 5
228
585
563
541
51 9
495
1 25
9
3. 25
1 23
441
429
41 7
405
391
1 40
9
4. 0
1 41
467
453
439
425
41 1
1 60
9
4. 0
1 56
501
485
469
453
437
1 80
9
5. 0
1 80
535
51 7
499
481
463
200
9
5. 0
1 95
569
549
529
509
489
225
9
6. 5
228
61 1
589
567
545
521
1 60
10
4. 0
1 56
526
51 0
494
478
462
1 80
10
5. 0
1 80
560
542
524
506
488
200
10
5. 0
1 93
594
574
554
534
51 4
225
10
6. 5
228
636
61 4
592
570
546
250
10
6. 5
246
680
654
630
604
580
280
10
8. 0
283
730
702
674
646
61 8
1 60
12
4. 0
1 56
577
561
545
529
51 3
1 80
12
5. 0
1 80
61 1
593
575
557
539
200
12
5. 0
1 95
645
625
605
585
565
225
12
6. 5
228
687
665
643
621
597
250
12
6. 5
246
731
705
681
655
631
280
12
8. 0
283
781
753
725
697
669
31 5
12
8. 0
308
841
809
777
747
71 5
1 60
15
4. 0
1 56
653
637
621
605
589
1 80
15
5. 0
1 80
687
669
651
633
61 5
200
15
5. 0
1 95
721
701
681
661
641
225
15
6. 5
228
763
741
71 9
697
673
250
15
6. 5
246
807
781
757
731
707
280
15
8. 0
283
857
829
801
773
745
31 5
15
8. 0
308
91 7
885
853
823
791
355
15
1 0. 0
357
985
949
91 3
879
843
© BSI 04-1 999
3
4
blank
BS AU 50-1-5.4a:1994
List of references
See national foreword.
© BSI 04-1 999
BS AU
50-1-5.4a:1994
ISO 10499-1:
1991
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